How to Get Rid of Webworms in Trees Organically

If you are looking for the ugliest pest infestations, then webworms in trees are the ones you should look at. These pests are known for spinning their webs and having nests on the leaves and branches of trees. As the nests keep on growing, the dangers of trees keep on increasing. These pests eat the leaves present within their nests. Sometimes these nests can cross even 3 feet! Are you wondering how to get rid of webworms? Well, there are many natural and organic ways to control webworms. These methods ensure that the trees do not face any side effects while we tackle webworm attacks. Not following organic methods and going for inorganic methods mean that to avoid one issue, you are going for another issue.


Understanding Webworms

The webworms, technically known as Hyphantria Cunea are known because of their larval stage where they create webs and nests around the trees. This pest has got a wingspan of 30 mm. These are white-coloured creatures although there are a few dark-coloured marks in some of them. If you want to be a webworm killer, it is better to understand the basics about them before planning to launch an attack.

They start creating webs for matting purposes, temperature regulations, protection from predators, and increasing the growth rate. It usually leads to an increase in infections and predation among the trees. You can find these creatures mostly on alder, willow, cottonwood, apple, pecan, maples, elm, peach, and pear trees. These trees are the favorites, but there are more than 90 species of trees on which these pests attack. You will find these creatures start their infestation from late summer, and carry it till the fall. If you deal with them when they are beginning to attack in summer, then you can help the trees to avoid a dangerous infestation in the fall.

Detection and Identification

Being a webworm killer is not an easy task if you fail to understand the basics of detection and identification. First, you need to check for the larvae near the branches and leaves to see if any webworm attacks are taking place. During the infestation period, you can see the leaves are turning brown. Leaves will be quite dry. These are mostly white and beige-coloured creatures and you can detect them very easily. You can have insecticide for webworms but before that detect these creatures! Mostly, there are a few steps you should follow in your entire detection and identification process, and they are:

  • Check the webbed areas: If you are finding silk-like webs, then you need to check more because they use it to feed and develop themselves. Check out the branch tips and foliage of the trees.
  • Mark the caterpillars: See, if you find typically green and brown caterpillars around. They are usually 1 inch long and have long hairs
  • Identify the damage: Usually look at the leaves as they eat leaves and cause defoliation and skeletonization during high infestation periods.
  • Look for active movements: If you are finding webbed areas or any movements of caterpillars then it is a sign that you should start inspecting very closely.

A group of webworms on a leaf.

How to get rid of webworms?

Are you looking for methods to be the best webworm killer? Are you wondering how to get rid of webworms? Well, we are covering the preventive techniques in this part, as they say, prevention is always better than cure!

Proper Tree Care

To prevent the attacks of webworms, you must take proper care of the trees. There are a few things you need to follow are:

  • Pruning: You need to regularly prune the trees and remove the weakened and dead branches. These notorious creatures are known for attacking the weak parts. Keeping trees healthy can help you to avoid the attack of webworms.
  • Mulching: Apply a layer of organic mulch. Try to apply it near the base of the tree. It helps in moisture retention and improves soil quality. In a proper sense, it helps to maintain the health of the tree.
  • Remove the webbed parts: Look at the webs, and remove them carefully. It can help to eliminate any scope of infestation by these creatures. It also cuts out the population growth of webworms.
  • Regular Inspection: Check out the plants regularly as early detection can help you to avoid huge damage.
  • Water the trees properly: Always ensure that your trees get sufficient water. It is important to maintain their health and reduce stress during their dry period.
  • Natural Barriers: Planting repellent plants can help you to avoid webworms from reaching the trees. These are natural barriers.
  • Avoid overuse of chemicals: Avoid unnecessary chemicals otherwise, your plants become the target of harmful organisms.
  • Keep soil healthy: Keep soil healthy, by avoiding usage of chemical fertilizers. It will keep your trees healthy and away from webworms.

These are important measures, as caring about plants can help you to avoid the attack of webworms. Keep plants healthy and always ensure the well-being of your trees. Consulting with a tree care professional or a certified arborist can be great for guidance in keeping plants healthy.

Natural Predators

Having natural predators can be quite helpful to avoid webworms. You can have them with your trees as these are not just webworm predators but also good for maintaining biodiversity in your garden. Birds are known to feed on webworms as it is a good part of their diet. They are efficient predators and can help you to decrease the population of webworms in your garden. These are the very popular predators of webworms.

Coming to other predators, parasitic wasps, lady beetles, spiders, and small mammals are different species that are popular natural predators of webworms. You can have them in your garden, and they will be beneficial for your plants. You can even plant nectar-rich flower plants that can attract pollinators, who are usually natural predators of webworms.

Organic Control Methods

Are you looking for insecticides for webworms? Are you looking for proper organic control methods to avoid webworms in your garden? This part is the biological answer for how to get rid of webworms for you! Do not delay, and go through this part to get rid of the webworm moth as soon as possible.


Bacillus thuringiensisBT Thuricide biological insecticide for treating webworms. is a very effective solution. It is completely organic and very effective for controlling webworms in trees. This beneficial bacteria is present in an amazing product called BT THURICIDE. After understanding about this insecticide you will not worry thinking about how to get rid of webworms!

With Bt being an active ingredient, you can always stay assured that any caterpillar pest, including webworms, is always in trouble when this insecticide is used. Bt is a naturally occurring bacterium. It produces protein crystals that are toxic for some larvae of some insects. Usually, the larvae of moths and butterflies find it difficult to survive against this bacterium. It disrupts their guts and that leads to their death.

In case, you are worried about the side effects of this bacterium, then you should know that this bacterium is safe for pets, beneficial insects, and most importantly humans. It can be used organically, in your garden. It is the best insecticide for webworms.

Application techniques of Bt insecticide

Application is the most important thing. Knowing the right way can help you to be effective. Follow the points that are given below.

Focus on timing: Apply the spray of this insecticide when the webworm infestation is in the early stage. Mostly, late spring or early summer is the best time as the larvae are actively feeding. It ensures that this spray attacks the pest at the maximum level.

Have a methodological approach: Mix this insecticide as per the instructions given by professionals or manufacturers. Have a good garden sprayer or a hose-end sprayer for perfect application. Having a sprayer with a narrow nozzle can be highly helpful in accurately targeting the affected areas.

The best coverage is required: Spray the affected tree properly. Give full attention to the foliage and the webs where you find webworms. Try to apply the solution evenly and do not disregard either the upper or lower surface of the leaf. Having good coverage can help you with effective pest control.

Other Organic Strategies

There are a few other strategies that are completely organic and you can prefer apart from the technique given above in this article.

  • Alternative organic insecticides: You can choose neem oil and Spinosad. These two options are effective against webworm attacks and can act as additional options for organic control.
  • Physical control methods: If the infestations are small, then you can prefer the physical control method. You can prune and remove the webs manually before large infestations ruin the garden.

You can have Bt THURICIDE with other strategies to make your life easy as far as the pest management approach is concerned. Having organic ways can help you not only control webworm attacks but also avoid environmental damage that is caused by harmful chemicals.

Monitoring and Follow-up

If you want to monitor and follow up against webworm reinfestation then you need to observe, prevent, and make timely interventions. Rather than just focusing on how to get rid of webworms, you must focus on avoiding reinfestation of webworms too. Have sticky traps, keep on doing regular inspections and scouting, do regular pruning, and keep your garden clean. Regular mulching, watering, and sanitation are a must. You need to ensure that your trees are always healthy.

Along with regular activities, you must integrate pest management and have Bt THURICIDE handy always. It will help you to avoid the reinfestation of this notorious creature.


Preventing webworm infestation in trees needs careful observation along with proactive measures. BT THURICIDE can help you to keep the webworm population in check. You must focus on organic methods, because chemical methods are not good for plants in the long-term, as well as it can hamper the quality of the soil. After reading this article, we are hopeful that your query regarding how to get rid of webworms is solved.


1.Moon, Jae-Hyun, et al. “Biological control of fall webworm larva (Hyphantria cunea Drury) and growth promotion of poplar seedlings (Populus× canadensis Moench) with Bacillus licheniformis PR2.” Forest Ecology and Management 525 (2022): 120574.

2.Martemyanov, Vyacheslav V., et al. “A new microbiological weapon against lepidopteran pests.” bioRxiv (2022): 2022-05.

Leave a Reply

Your email address will not be published. Required fields are marked *

Latest Post

Crush Powdery Mildew on Roses, Your Ultimate Guide!

As a plantation owner, I face quite a few..

Cultural & Biological Control Tips For Banana Weevil Management

The banana weevil, also known as Cosmopolites sordidus, is..

Biological Method To Get Rid Of Fusarium Wilt In Banana

Fusarium wilt in banana is usually known to be..